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// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

import Quickshell
import Quickshell.Widgets
import QtQuick

Column {
    spacing: 12

    Text {
        text: Icons.scanning ? "scanning…" : `${Icons.iconThemes.length} icon themes · ${Icons.cursorThemes.length} cursor themes`
        color: Theme.overlay
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 4 }
    }

    Text {
        text: "Icon theme"
        color: Theme.subtext
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 2; bold: true }
    }

    Flickable {
        id: iconList
        width: parent.width
        height: 150
        contentWidth: iconRow.implicitWidth
        contentHeight: height
        clip: true
        flickableDirection: Flickable.HorizontalFlick

        Row {
            id: iconRow
            spacing: 10
            Repeater {
                model: Icons.iconThemes
                Rectangle {
                    id: iconCard
                    required property string modelData
                    readonly property bool current: Icons.currentIcon === modelData
                    width: 150; height: 120; radius: 10
                    color: current ? Qt.alpha(Theme.accent, 0.2) : Qt.alpha(Theme.surface, 0.35)
                    border.width: current ? 2 : 1
                    border.color: current ? Theme.accent : "transparent"

                    MouseArea {
                        anchors.fill: parent
                        cursorShape: Qt.PointingHandCursor
                        onClicked: Icons.applyIcon(modelData)
                    }

                    Column {
                        anchors.centerIn: parent
                        spacing: 6
                        Row {
                            spacing: 6
                            Repeater {
                                model: ["folder", "text-x-generic", "image-x-generic", "network-wireless"]
                                IconImage {
                                    required property string modelData
                                    readonly property string glyph: (Icons.iconPreview[iconCard.modelData] ?? {})[modelData] ?? ""
                                    // Absolute paths must carry file://, or they
                                    // resolve against the config's qrc base and
                                    // fail; Gtk's builtin icons come back as
                                    // /org/gtk gresource paths Qt cannot open.
                                    source: glyph.indexOf("/") === 0 && glyph.indexOf("/org/gtk/") !== 0
                                            ? "file://" + glyph : ""
                                    implicitSize: 26
                                }
                            }
                        }
                        Text {
                            anchors.horizontalCenter: parent.horizontalCenter
                            text: iconCard.current ? modelData + "  current" : modelData
                            color: Theme.text
                            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 4 }
                        }
                    }
                }
            }
        }
    }

    Text {
        text: "Cursor theme"
        color: Theme.subtext
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 2; bold: true }
    }

    Flickable {
        width: parent.width
        height: 150
        contentWidth: cursorRow.implicitWidth
        contentHeight: height
        clip: true
        flickableDirection: Flickable.HorizontalFlick

        Row {
            id: cursorRow
            spacing: 10
            Repeater {
                model: Icons.cursorThemes
                Rectangle {
                    required property string modelData
                    readonly property bool current: Icons.currentCursor === modelData
                    width: 120; height: 120; radius: 10
                    color: current ? Qt.alpha(Theme.accent, 0.2) : Qt.alpha(Theme.surface, 0.35)
                    border.width: current ? 2 : 1
                    border.color: current ? Theme.accent : "transparent"

                    HoverHandler {
                        onHoveredChanged: {
                            if (hovered) {
                                Icons.previewCursor(modelData);
                                // Live preview: the real cursor, reverted on leave.
                                liveCursorCursor = modelData;
                                Quickshell.execDetached(["hyprctl", "setcursor", modelData, "24"]);
                            } else if (liveCursorCursor === modelData) {
                                liveCursorCursor = "";
                                Quickshell.execDetached(["hyprctl", "setcursor", Icons.currentCursor, "24"]);
                            }
                        }
                    }
                    MouseArea {
                        anchors.fill: parent
                        cursorShape: Qt.PointingHandCursor
                        onClicked: Icons.applyCursor(modelData)
                    }

                    Column {
                        anchors.centerIn: parent
                        spacing: 6
                        Image {
                            anchors.horizontalCenter: parent.horizontalCenter
                            width: 40; height: 40
                            asynchronous: true
                            source: Icons.cursorPreview[modelData] ? "file://" + Icons.cursorPreview[modelData] : ""
                            fillMode: Image.PreserveAspectFit
                        }
                        Text {
                            anchors.horizontalCenter: parent.horizontalCenter
                            text: parent.parent.current ? modelData + "  current" : modelData
                            color: Theme.text
                            font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 4 }
                            width: 110
                            elide: Text.ElideMiddle
                            horizontalAlignment: Text.AlignHCenter
                        }
                    }
                }
            }
        }
    }

    Text {
        width: parent.width
        wrapMode: Text.Wrap
        visible: Icons.notice !== ""
        text: Icons.notice
        color: Theme.green
        font { family: Theme.fontFamily; pixelSize: Theme.fontSize - 3 }
    }

    property string liveCursorCursor: ""
    onVisibleChanged: if (!visible && liveCursorCursor !== "") {
        Quickshell.execDetached(["hyprctl", "setcursor", Icons.currentCursor, "24"]);
        liveCursorCursor = "";
    }

    // A Loader destroys this item on tab switch or drawer close, and visible
    // does not necessarily change first, so revert the real cursor here too.
    Component.onDestruction: if (liveCursorCursor !== "") {
        Quickshell.execDetached(["hyprctl", "setcursor", Icons.currentCursor, "24"]);
        liveCursorCursor = "";
    }
}